The moment a true agnostic arrives in heaven, they'll realize the truth and convert for the sake of following the truth, which includes doing good, and will receive the usual treatment that lifelong worshipers receive.

Of course, this is all assuming the modern Christian heaven is where people will go. It’s kind of funny how everyone asserts that their religion/belief’s idea of the afterlife is absolutely right, but since they can’t really prove it, it becomes a bare assertion fallacy.

Oh well. With all the different afterlife theories that have floated around for thousands of years now, it doesn’t really matter what you do. You’ll wind up in some peoples’ “heaven” and some peoples’ “hell”.

Might as well just live your life however you see fit, since there’s no way to know for sure where you’ll go until you die. Unless you somehow manage to take a camcorder into the afterlife and then send it back xD

Since it’s an English comic, it makes sense to use an afterlife most English native speakers believe in, or at least have in mind, also most rebirth centered religions would require a different kind of joke altogether.